Each of these filters is designed with a lightweight airframe with Aircraft Aluminum Construction resulting in an amazingly light filter at approx 1g. The filters feature a high-definition optical glass free from color cast which provides ultimate sharpness. The NiSi filters for DJI Air 2S are treated with NiSi’s Nano coating making them easy to clean, waterproof (the water beads up, and falls straight off) and very low reflection. This Kit includes ND8/PL (3 Stop) ND16/PL (4 Stop) ND32/PL (5 Stop) ND64/PL (6 Stop) and Enhanced PL (Polarizer). Achieve more natural and refined videos expanding your creative possibilities. These ND filters lengthen the shutter speed by reducing the amount of light entering the camera – it gives a more natural sense of motion when filming. They also feature the same IR technology available in NiSi's square filters to reduce color cast and allow a very true-to-life color.Polarizing FilterThe PL (Polarizer) helps to reduce reflections and glare by filtering out light that has become polarized due to reflection from a non-metallic surface. The light from the sun naturally becomes partially polarized due to reflecting off electrons in air molecules, causing the light to scatter into what appears as haze. A polarizing filter arranges, and filters, this directionally polarized light perpendicularly to the reflected light, allowing for the absorption of much of this light. This results in a noticeable reduction of glare and reflections from non-metallic surfaces and an increase in the saturation of skies and foliage. The NiSi Enhanced Polarizer for DJI Air 2S has enhanced color saturation compared to a standard PL which increases the saturation of the scene when used.